5x^2-16x-6384=0

Simple and best practice solution for 5x^2-16x-6384=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 5x^2-16x-6384=0 equation:


Simplifying
5x2 + -16x + -6384 = 0

Reorder the terms:
-6384 + -16x + 5x2 = 0

Solving
-6384 + -16x + 5x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
5 the coefficient of the squared term: 

Divide each side by '5'.
-1276.8 + -3.2x + x2 = 0

Move the constant term to the right:

Add '1276.8' to each side of the equation.
-1276.8 + -3.2x + 1276.8 + x2 = 0 + 1276.8

Reorder the terms:
-1276.8 + 1276.8 + -3.2x + x2 = 0 + 1276.8

Combine like terms: -1276.8 + 1276.8 = 0.0
0.0 + -3.2x + x2 = 0 + 1276.8
-3.2x + x2 = 0 + 1276.8

Combine like terms: 0 + 1276.8 = 1276.8
-3.2x + x2 = 1276.8

The x term is -3.2x.  Take half its coefficient (-1.6).
Square it (2.56) and add it to both sides.

Add '2.56' to each side of the equation.
-3.2x + 2.56 + x2 = 1276.8 + 2.56

Reorder the terms:
2.56 + -3.2x + x2 = 1276.8 + 2.56

Combine like terms: 1276.8 + 2.56 = 1279.36
2.56 + -3.2x + x2 = 1279.36

Factor a perfect square on the left side:
(x + -1.6)(x + -1.6) = 1279.36

Calculate the square root of the right side: 35.76814225

Break this problem into two subproblems by setting 
(x + -1.6) equal to 35.76814225 and -35.76814225.

Subproblem 1

x + -1.6 = 35.76814225 Simplifying x + -1.6 = 35.76814225 Reorder the terms: -1.6 + x = 35.76814225 Solving -1.6 + x = 35.76814225 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.6' to each side of the equation. -1.6 + 1.6 + x = 35.76814225 + 1.6 Combine like terms: -1.6 + 1.6 = 0.0 0.0 + x = 35.76814225 + 1.6 x = 35.76814225 + 1.6 Combine like terms: 35.76814225 + 1.6 = 37.36814225 x = 37.36814225 Simplifying x = 37.36814225

Subproblem 2

x + -1.6 = -35.76814225 Simplifying x + -1.6 = -35.76814225 Reorder the terms: -1.6 + x = -35.76814225 Solving -1.6 + x = -35.76814225 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.6' to each side of the equation. -1.6 + 1.6 + x = -35.76814225 + 1.6 Combine like terms: -1.6 + 1.6 = 0.0 0.0 + x = -35.76814225 + 1.6 x = -35.76814225 + 1.6 Combine like terms: -35.76814225 + 1.6 = -34.16814225 x = -34.16814225 Simplifying x = -34.16814225

Solution

The solution to the problem is based on the solutions from the subproblems. x = {37.36814225, -34.16814225}

See similar equations:

| 16x7*7/4x7y5 | | z=-0.32 | | 2x(x-3)=x+9 | | 3(3c-1)-3=5c+6 | | 0.99n=1.29 | | (1/4)(1/4)(1/4)(1/4) | | 0.99n=1.29n | | 2x+1.5=4.1 | | t^2+2t+8=0 | | x+2^(1/2)-3 | | 3(2x+2)=2(3x+9) | | y^2+4-12= | | y=7/6*3.7778-7 | | 2x+(x+11)=7-x | | 7/6x-7=-10/3x+10 | | 3x-5-5(x+1)=6x+7 | | -6(0.1x+0.2)-1.9=-.01 | | x+(2x^1/2)-3=0 | | 2x^2-1=11x | | x+2x^1/2-3=0 | | -4(0.1x+0.3)-1.2=-0.4 | | 37+4y-1=15y-13-4y | | b=y+xf | | 7v-9=6v-2 | | 4=-4/x+4 | | 7x-6=6x-3 | | y=-4/5(-0.8)+4 | | 6/11=-2/5x | | y+2z=9 | | -3+8(x-2)=16x+5-8x | | y=-4/5x+4 | | 5/4w=40 |

Equations solver categories